Full Allison Transmission Conversion Kit Stage 4

Features:

• Stage 4 built Allison 1000 transmission
• Replaces 68RFE in 2015-2018 4WD trucks
• Billet input intermediate and output shafts
• Deep transmission pan improves cooling
• Custom bellhousing bolts directly to Cummins
• TRANSLator module retains factory functions
• Maintains tow haul and tap shifting modes
• Designed for high horsepower Cummins builds
• Handles extreme towing and load demands
• Smoother shifts and better gear spacing
• Built for long term reliability and strength
• 5 year ATS transmission warranty included

Take Your Cummins To A Whole New Level Of Strength

If your 2015-2018 RAM 2500 or 3500 with the 68RFE has been holding you back, this ATS Stage 4 Full Allison Conversion Kit gives your truck the kind of strength and confidence it should have had from the start. It brings a fully built Allison 1000 to the table, complete with billet input, intermediate, and output shafts that are ready for big torque and long hauls. You can feel the difference the moment you put the truck in gear, as the Allison delivers smoother shifts and a more planted driving feel under heavy load. The deeper transmission pan helps keep temperatures in check, which is a huge benefit when towing long distances or working in hotter climates. What makes this upgrade even more appealing is how naturally it blends with your truck, keeping all the factory functions you rely on every day. From tow haul mode to range select, everything stays familiar while performance takes a major leap forward. If you want your Cummins to feel stronger, shift better, and handle real-world work with ease, this kit makes the decision an easy one.

Built To Replace Every Weak Link In The 68RFE System

This Stage 4 conversion kit is engineered for RAM owners who need a transmission capable of matching the capability of the 6.7L Cummins. It replaces the factory 68RFE with a fully built Allison 1000, reinforced with billet input, intermediate, and output shafts for maximum durability under higher power levels. The ATS deep pan increases fluid capacity and promotes better cooling, which helps extend transmission life during tough hauls or demanding work cycles. A patent pending bellhousing ensures the Allison mounts cleanly to the Cummins engine without requiring any custom fabrication. Along with that, the TRANSLator module bridges communication between the truck’s ECM, BCM, and the Allison TCM, allowing push button start, tow haul mode, tap shift, and transfer case functions to continue working as they should. This creates a near plug and play experience even though the driveline is receiving a major upgrade. For trucks running higher horsepower, oversized tires, or heavy towing workloads, the Stage 4 system provides the added strength and refined drivability the 68RFE simply cannot support.

Fitment: 2015, 2016, 2017, 2018 RAM 2500/3500 6.7L Cummins 68RFE 4WD

Notes:

• Replaces 68RFE in 2015-2018 RAM 2500/3500 4WD.
• Includes billet input, intermediate, and output shafts.
• Requires engine reflash to AS68RC or AS69RC.
• TRANSLator module restores full factory functions.
• Keeps push start, tow/haul, and range select working.
• Cast bellhousing fits Cummins with no grinding.
• Driveshaft work may be needed on some trucks.
• Factory wiring bolts up with no fabrication.
• Install time is around 12 hours professionally.
• Costs about 20% more than a 68RFE upgrade.
• TCM adapts to driving habits for smooth shifts.
• Perfect for heavy towing or tuned Cummins setups.